Current sensor for universal application
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United States of America Patent
Stats
-
Dec 13, 1988
Grant Date -
N/A
app pub date -
Jun 11, 1987
filing date -
Jun 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic flux concentrator comprising spaced pole pieces (4,6) and magnetic shunt (8) bridging the pole pieces within an insulating housing (2) which also contains a magnetoresistive transducer (24) and electronic circuitry (26) for sensing magnetic field intensity between the pole pieces and relating that intensity as electric signals provided at wiring terminals (28) at the exterior of the housing. The pole pieces have magnetic terminal portions adjacent openings in the housing for removable attachment thereto of selected ferrous strap configurations (42,50,52,60) determined by the cross-sectional shape of the electrical conductor (46) in which current flow is to be measured, the respective strap configuration and flux concentrator forming a magnetic loop around the conductor for picking up the magnetic flux induced by current flow in the conductor.
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